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I think it was introduced at NAMM show in january 2005, and I suppose it was ended in january 2008 when 300GX was released; so it can be 4 years old, it can be 1 year old.

I can say I'm a Roland fan, and I dislike 300sx. Too few useful sounds (just a few from all 70; 300GX has more), a bit plastic-fell keyboard (fp-4 or 300gx have better one), only LED display (300gx has LCD), only two zones (300gx has 3), only digital equalizer (300gx has two knobs). Only advantage I see here is that it's light (15,5kg), it's reliable (Roland)... and it's shorter: it is 140,8cm long while 300gx has 144,4cm. So it's worth trying live before you buy, considering how many sounds you will really use.

I think it's worth to add and buy 300gx which is a lot better in sounds, keyboard, display, and it's still very light (16,3kg). If you can't afford it or want to use 300sx mainly a few tones (others for fun), or you want to use it as a controller, it's worth considering, because next one is more expensive.

Is it bargain? I think it's normal price. Why? It's used, dscontinued, not very great in it's price range compared to others Roland pianos. But it's still the cheaper sensible transaction.

I agree with Kiedysktos. The RD300SX has good grand pianos, mediocre electric pianos and organs, good strings and poor synths. Its action is responsive but way too light and shallow. However, it is sturdy, user friendly (great for live work) and sounds good in a band mix. At 400GBP in A1 condition it has to be worth considering, as it will be a long time before the GX drops to that price. If my 300SX were lost, stolen or it died, I would not choose to replace it with another, but it's surprising how few lightweight alternatives are out there.

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